Differences in Facial Expressions between Females and Males - Is Conservatism an Extreme form of The Male Brain?

Sex, Power, and Partisanship: How Evolutionary Science Makes Sense of Our Political Divide - Hector A. Garcia 2019

Differences in Facial Expressions between Females and Males
Is Conservatism an Extreme form of The Male Brain?

Humans have far more facial muscles than any other animal (a whopping forty-three in total), which, through a nuanced and nearly infinite array of facial expressions, allows us to send and receive a stunning volume of social information. Research finds that women are far more skilled than men at decoding facial expressions, as well as other nonverbal forms of expression, such as tone of voice.25 This reflects a higher level of theory of mind, where more incoming information is being processed to infer intention, meaning, emotion states, and so on, which facial expressions convey brilliantly. This female skill of using faces as communication channels can be detected early; for example, from birth girls look longer at faces than boys, whereas boys look longer at inanimate objects.26 Women are also more accurate and faster than men at identifying emotional facial expressions.27 Further, women are even better than men at basic facial detection skills, such as detecting pictures of faces embedded in drawings with other objects, and identifying faces they had previously seen.28 Research also finds that women show greater facial expressivity than men.29 Thus the ability to send and receive information through the human visage is more pronounced in females. People in the autism spectrum, which, again, favors males by a ten-to-one ratio, have a difficult time decoding and making meaningful facial expressions.